can't programmed,because already pre-programmed with Unique ID.
Description
1.EM4100 Chip
2.125khz
3.JUST READ ONLY
4.thickness: 0.3mm
5.adhesive back.
6.paper material
7.diameter: 30mm
Please note this tag can't support HID WG26 Reader,this one is not HID Tag,it's normal 125khz tag,if you don't know if it can work,please contact with us before you order.